Hello,
Since couple of days we are facing issue related to saving private filters.
A user has communicated us that he is not able to "Save" private filter in Change module, however on other modules user is able to save private filter.
We checked on our end, we are able to save private filters for Change module as well as other modules. Also we tried other users having same groups assigned as of above user, they are able to save private filters on all the module.